We divide 90843565 by 312
The aim is to understand the frequency of 312 in 90843565.

Going ahead to step 1:
When dividing 9 by 312, we get 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 312

On to step 2:
90 divided by 312 is 0 with a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 90 and we're left with 90.
Grab the next digit (8) from the dividend, add it to 90, then carry on: 908 / 312

On to step 3:
312 can be fit into 908 2 times, resulting in a remainder of 284.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 624 from 908 and we're left with 284.
Fetch the next digit (4) from the dividend, attach it to 284 and continue: 2844 / 312

On to step 4:
If we divide 2844 by 312, we get 9 and a remainder of 36.
Record the quotient 9 as the next digit in the result. 
Result so far: 29.0
Subtract 2808 from 2844 to get 36.
Append the next digit (3) from the dividend to 36 and continue with: 363 / 312

On to step 5:
When dividing 363 by 312, we get 1 with a remainder of 51.
Use 1 as the next digit of our solution. 
Result so far: 291.0
Subtracting 312 from 363 leaves us with 51.
Take the next digit (5) from the dividend and append it to 51, then repeat: 515 / 312

Going ahead to step 6:
312 goes into 515 1 times with a remainder of 203.
The number 1 becomes the next digit in our result. 
Result so far: 2911.0
The remainder is 203 after subtracting 312 from 515.
Grab the next digit (6) from the dividend, add it to 203, then carry on: 2036 / 312

Let's proceed to step 7:
When dividing 2036 by 312, we get 6 with a remainder of 164.
The next digit of our result is 6. 
Result so far: 29116.0
Subtract 1872 from 2036 to get 164.
Fetch the next digit (5) from the dividend, attach it to 164 and continue: 1645 / 312

On to step 8:
If we divide 1645 by 312, we get 5 and a remainder of 85.
The number 5 becomes the next digit in our result. 
Result so far: 291165.0
Subtract 1560 from 1645 to get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 9:
The number 312 fits into 850 2 times, leaving a remainder of 226.
Use 2 as the next digit of our solution. 
Result so far: 291165.2
If we subtract 624 from 850, we get 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Let's proceed to step 10:
312 can be fit into 2260 7 times, resulting in a remainder of 76.
The next digit of our result is 7. 
Result so far: 291165.27
If we subtract 2184 from 2260, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 11:
312 can be fit into 760 2 times, resulting in a remainder of 136.
Use 2 as the next digit of our solution. 
Result so far: 291165.272
Subtract 624 from 760 to get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Moving on to step 12:
312 can be fit into 1360 4 times, resulting in a remainder of 112.
Write down 4 as next digit of the result. 
Result so far: 291165.2724
Subtract 1248 from 1360 to get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Let's proceed to step 13:
When dividing 1120 by 312, we get 3 with a remainder of 184.
Put 3 as the next digit of the answer. 
Result so far: 291165.27243
If we take 936 away from 1120, we end up with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Going ahead to step 14:
When dividing 1840 by 312, we get 5 with a remainder of 280.
The next digit of our result is 5. 
Result so far: 291165.272435
Deduct 1560 from 1840 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 15:
312 goes into 2800 8 times with a remainder of 304.
Write down 8 as next digit of the result. 
Result so far: 291165.2724358
Subtracting 2496 from 2800 leaves us with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Going ahead to step 16:
312 goes into 3040 9 times with a remainder of 232.
Use 9 as the next digit of our solution. 
Result so far: 291165.27243589
If we take 2808 away from 3040, we end up with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

The final outcome is 291165.27243589, with a leftover of 2.32e-07.